CN109880426A - A kind of resistance to ablation phenylate support silicon dynamic sealing putty and preparation method thereof - Google Patents
A kind of resistance to ablation phenylate support silicon dynamic sealing putty and preparation method thereof Download PDFInfo
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- CN109880426A CN109880426A CN201910193787.0A CN201910193787A CN109880426A CN 109880426 A CN109880426 A CN 109880426A CN 201910193787 A CN201910193787 A CN 201910193787A CN 109880426 A CN109880426 A CN 109880426A
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Abstract
The invention discloses a kind of phenylate of resistance to ablation support silicon dynamic sealing putty and preparation method thereof, the putty includes the component of following parts by weight: 40-60 parts of base rubber, 10-20 parts of reinforced filling, 2.0-4.5 parts of antistructurizing agent, 10-35 parts of anti-burning agent and modified filler 6-14 parts of lubrication, wherein, base rubber is that phenylate supports one of silicon putty glue, phenyl silicon putty glue and phenylene silicon putty glue or a variety of.The present invention is with the one or more of phenylate support silicon putty glue, phenyl silicon putty glue or phenylene silicon putty glue for base material, filling is with anti-burning agent, reinforcing agent, lubricant etc., obtain good heat resistance, resistance to ablation, good airproof performance and the good dynamic sealing putty of lubricity, and the preparation method of putty is simple, easy for construction, it is convenient to assemble；Putty carrys out filling flexible nozzle gap, not only high temperature resistant ablation, prevents air-flow from corroding flexible joint, and have airtight effect and self-lubricating function, reduces friction, do not influence shaking moment.
Description
Technical field
The present invention relates to the high temperature resistant sealing material of resistance to ablation technical fields, support more particularly, to a kind of phenylate of resistance to ablation
Silicon dynamic sealing putty and preparation method thereof.
Background technique
When solid propellant rocket component assembling, the gap of some components need to smear putty, to guarantee the reliable of sealing.Room
Temperature vulcanizable silicone rubber is a kind of comparatively ideal putty material, and the G-3 putty of early application uses methyl silicone rubber raw rubber, is added white
The heat-resistant fillers such as carbon black, iron oxide are made rubber compound, and vulcanizing agent and promotor is added in when use；The two-component putty inserts gap
Room temperature vulcanization in 24 hours afterwards, can be good with metal, the bonding at nonmetallic interface.Subsequently, as G-3 putty is inconvenient for use, develop
Single-component room-temperature vulcanized silicone rubber putty, based on the polydimethyldiphenylsiloxane containing terminal hydroxy group, with three second of methyl
Acyloxy silane makees crosslinking agent, and dibutyl tin dilaurate is promotor, and white carbon black and iron oxide are reinforcing agent.Putty is encapsulated in
In metal hose, when application, squeezes into coating position, room temperature vulcanization elastomer-forming from hose.The vulcanization mechanism of one pack system putty is
By the moisture in air, terminal hydroxy group is made to generate cross-linking reaction, 24 hours curing depth reach 2.0cm or more.
Do not vulcanize the shortcomings that putty overcomes both the above putty, have the advantages that not vulcanize with it is easy to use.Due to adopting
Silicon putty glue, phenyl silicon putty glue or phenylene silicon putty glue are supportted with the phenylate of high phenyl content, while cooperating different function
Heat-resistant filler, therefore the heat resistance of putty, anti-ablation and air-tightness are higher.
By the difference of spray bar technology requirement, does not vulcanize putty and be divided into static seal and two kinds of dynamic sealing.Static seal is for standing
Position directly contacts high-temperature fuel gas, therefore the Burning corrosion resistance of putty is main indicator such as the gap that jet pipe and shell assemble.?
In the formula design of putty, it should select to produce carbon rate height and the hard material of carbon-coating；And dynamic sealing putty is then used for gimbaled nozzle
Free gap does not require nothing more than high temperature resistant, and also has very high requirement to greasy property, and therefore, it is necessary to select molybdenum disulfide, stone
Ink powder and pyrophillite etc. are used as filler, can improve the greasy property of putty.
Flexible joint nozzle controls executing agency as the thrust direction of solid propellant rocket, relies on flexible joint rubber bullet
Property part deformation complete jet pipe wobbling action.Solid propellant rocket has the working environment of high pressure, high temperature, the temperature of seal member
It is higher, therefore flexible joint must carry out thermal protection and ablation protection close to the side of combustion gas.The dynamic sealing requirement of gimbaled nozzle
The material that coefficient of friction is small, self-lubrication is good, connector gap is in addition to using O-ring, also handy high temperature resistant, resistance to ablation, not sulphur
The putty of change fills gap, it not only seals, but also high temperature resistant anti-ablation, and high-temperature fuel gas is prevented to corrode flexible joint
Effect.
Summary of the invention
The object of the present invention is to provide one kind can be used for space flight and national defense industry, is suitble to solid propellant rocket moving part
Sealing supports silicon dynamic sealing putty with the phenylate of resistance to ablation.
In order to achieve the above objectives, the present invention adopts the following technical scheme:
A kind of resistance to ablation phenylate support silicon dynamic sealing putty, the component including following parts by weight: 40-60 parts of base rubber, reinforcement
10-20 parts of filler, 2.0-4.5 parts of antistructurizing agent, 10-35 parts of anti-burning agent and modified filler 6-14 parts of lubrication；
Wherein, the base rubber be phenylate support one of silicon putty glue, phenyl silicon putty glue and phenylene silicon putty glue or
It is a variety of.
Specifically, above-mentioned base rubber is raw rubber, and the intrinsic viscosity at 30 DEG C is 0.42-0.60dL/g, preferably 0.50dL/
g。
The present invention innovatively by phenylate support one of silicon putty glue, phenyl silicon putty glue and phenylene silicon putty glue or
It is a variety of to be used as base rubber, while being equipped with modified lubrication filler, reinforced filling, anti-burning agent etc., guaranteeing its high temperature resistant ablation and mechanics
Under the premise of performance, its greasy property is improved.
In the present invention, parts by weight can be the unit of weight well known in the art such as μ g, mg, g, kg, be also possible to it again
Number, such as 1/10,1/100,10 times, 100 times.
In the above-mentioned technical solutions, in order to optimize the phenylate of resistance to ablation support silicon dynamic sealing putty greasy property, the modification
Lubrication filler is modified dose of modified lubrication filler, and the lubrication filler is the one of molybdenum disulfide, graphite powder and pyrophillite
Kind is a variety of, and the modifying agent is silane coupling agent and/or titanate coupling agent.
Preferably, in the above-mentioned technical solutions, the lubrication filler is the mixture of molybdenum disulfide and graphite powder, the two
Mass ratio is 1:1.8-3.2.
Further, in the above-mentioned technical solutions, the modifying agent is the mixing of silane coupling agent and titanate coupling agent
Object, in order to improve the modified effect of lubrication filler, promotes the stabilization of lubrication filler in a preferred embodiment of the invention
Property, the modifying agent is preferably the mixture of KH560 silane coupling agent and TMC105 titanate coupling agent, mass ratio 4:
1.2-2.7。
Further, in the above-mentioned technical solutions, in order to further strengthen the inoxidizability and ablation resistance of putty, and
It can preferably be combined with modified lubrication filler etc., the base rubber includes the phenylate for accounting for the base rubber total weight 92.5-97.8%
Support silicon putty glue, Zhan Suoshu base rubber total weight 0.5-1.2% phenyl silicon putty glue and account for the base rubber total weight 1.5-6.7%
Phenylene silicon putty glue.
In the above-mentioned technical solutions, the reinforced filling is fumed silica, precipitated silica and silicon powder
It is one or more.
In the above-mentioned technical solutions, the antistructurizing agent is hydroxy silicon oil, octamethylcyclotetrasiloxane, two silicon of hexamethyl
One of azane, methylchlorosilane and diphenyl silanediol are a variety of.
In the above-mentioned technical solutions, the anti-burning agent is zirconia powder, alumina powder, silica flour, sulfuric acid calcium powder, four oxidations
One of three iron powders, ferric oxide powder and oxide powder and zinc are a variety of.
Further, in the above-mentioned technical solutions, the phenylate of resistance to ablation supports silicon dynamic sealing putty, including following parts by weight
Several component: 47.6-58.7 parts of base rubber, 12.4-17.3 parts of reinforced filling, 2.5-2.8 parts of antistructurizing agent, anti-burning agent 18-
29 parts and modified filler 9.2-11.8 parts of lubrication.
In a preferred embodiment of the invention, the phenylate of the resistance to ablation support silicon dynamic sealing putty further includes tackifier,
The tackifier are the one or more of ethyl silicon oil, terpene resin and petroleum tackifier resin, and the additional amount of the tackifier is
0.02-0.04 times of base rubber, reinforced filling and antistructurizing agent quality sum.
Preferably, in the above-mentioned technical solutions, the tackifier be mass ratio be 2-4.2:1.2:1.0 ethyl silicon oil,
The mixture of terpene resin and petroleum tackifier resin.
The present invention also provides a kind of preparation methods of phenylate of resistance to ablation support silicon dynamic sealing putty, include the following steps:
S1, lubrication filler and modifying agent are placed in container, and the toluene of described lubrication 4-6 times of weight of filler is added,
Be warming up to 80-120 DEG C under nitrogen atmosphere protection, filtered after being stirred to react 2-4h, and with after acetone washing 2-3 times at 60-80 DEG C
Lower vacuum drying 1-2h obtains modified lubrication filler；
S2, base rubber, reinforced filling and antistructurizing agent are weighed in proportion, after mixing, 2-4 simultaneously blanking of Bao Tong,
It is spare to obtain sizing material；
S3, anti-burning agent and modified lubrication filler are weighed respectively in proportion, is added in sizing material obtained in step S2, mixes
After closing uniformly, Bao Tong 2-4 time and blanking, be subsequently placed at 140-190 DEG C processing 1-2h to get.
It in the above-mentioned technical solutions, in step s 2, further include that sizing material is placed at 170-190 DEG C at high temperature after blanking
Manage 55-75min.
It in the above-mentioned technical solutions, in step s3, further include before being uniformly mixed, weighing tackifier in proportion and adding
Enter into step S2 in obtained sizing material.
Beneficial effects of the present invention:
The present invention is with the one or more of phenylate support silicon putty glue, phenyl silicon putty glue or phenylene silicon putty glue for substrate
Material, filling is with anti-burning agent, reinforcing agent, lubricant etc., and obtained sealant material has good heat resistance, resistance to ablation, close
The advantages that envelope property is good, and lubricity is good, and the preparation method of putty is simple, and easy for construction, it is convenient to assemble.Putty carrys out filling flexible
Nozzle gap, its not only high temperature resistant ablation prevent air-flow from corroding flexible joint, and both have airtight effect, while there are also certainly
The characteristics of lubricating action reduces friction, does not influence shaking moment.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
In addition, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other
It can be combined with each other.
Term "comprising", " comprising " or its any other deformation used herein, it is intended that cover non-exclusionism includes.
For example, composition, step, method, product or device comprising listed elements are not necessarily limited to those elements, but may include
Not expressly listed other elements or such composition, step, method, product or the intrinsic element of device.
Equivalent, concentration or other values or parameter are excellent with range, preferred scope or a series of upper limit preferred values and lower limit
When the Range Representation that choosing value limits, this should be understood as specifically disclosing by any range limit or preferred value and any range
Any pairing of lower limit or preferred value is formed by all ranges, regardless of whether the range separately discloses.For example, when open
When range " 1 to 5 ", described range should be interpreted as including range " 1 to 4 ", " 1 to 3 ", " 1 to 2 ", " 1 to 2 and 4 to
5 ", " 1 to 3 and 5 " etc..When numberical range is described herein, unless otherwise stated, otherwise the range is intended to include its end
Value and all integers and score in the range.
In addition, as long as technical characteristic involved in the various embodiments of the present invention described below is each other not
Constituting conflict can be combined with each other.
Embodiment 1
A kind of preparation of resistance to ablation phenylate support silicon dynamic sealing putty, comprising the following steps:
S1, the modification for lubricating filler, weigh 50g graphite powder and are placed in three-necked flask, and 200g toluene and 1.5g is added
KH560 stirs and is passed through nitrogen, is warming up to 90 DEG C, keeps the temperature and is stirred to react 3h；To after reaction, be cooled to room temperature, filter
Toluene is removed, and in a vacuum drying oven with 2 postpositions of acetone washing, 70 DEG C of vacuum drying 2h obtain modified graphite
Powder；
The processing of S2, sizing material weigh 80g phenylate support silicon putty glue, 16g fumed silica and 4.8g diphenyl silicon two
Alcohol mixes on twin-screw extruder, and Bao Tongsan times, blanking, be put into 180 DEG C of constant temperature oven handle 1 hour, then take out to
With；
The refining of S3, putty, the sizing material that takes obtained in 100g step S2 that treated sequentially add 50g di-iron trioxide
Powder, modified graphite powder obtained in 20g step S1,10g alumina powder, 3g ethyl silicon oil mix on twin-screw extruder,
And Bao Tongsan times, blanking；
The post-processing of S4, putty: the putty refined is put into 150 DEG C of constant temperature oven and is handled 1 hour, modeling is then taken out
Shape, packaging to get.
Embodiment 2
A kind of preparation of resistance to ablation phenylate support silicon dynamic sealing putty, comprising the following steps:
S1, the modification for lubricating filler, weigh 15g molybdenum disulfide and 35g graphite powder are placed in three-necked flask, are added
200g toluene and 1.5g KH560, stir and are passed through nitrogen, are warming up to 90 DEG C, keep the temperature and are stirred to react 3h；To after reaction,
It is cooled to room temperature, filters and remove toluene, and in a vacuum drying oven with 2 postpositions of acetone washing, 70 DEG C of vacuum drying 2h are obtained
To modified lubrication filler；
The processing of S2, sizing material, weigh 55g phenylate support silicon putty glue, 25g phenyl silicon putty glue, 16g fumed silica and
5.0g diphenyl silanediol, mixes on twin-screw extruder, and Bao Tongsan times, blanking, and it is small to be put into 180 DEG C of constant temperature oven processing 1
When, it then takes out stand-by；
The refining of S3, putty, the sizing material that takes obtained in 100g step S2 that treated sequentially add 50g di-iron trioxide
Powder, modified lubrication filler obtained in 20g step S1,10g alumina powder, 3g ethyl silicon oil mix on twin-screw extruder
It is even, and Bao Tongsan times, blanking；
The post-processing of S4, putty: the putty refined is put into 150 DEG C of constant temperature oven and is handled 1 hour, modeling is then taken out
Shape, packaging to get.
Embodiment 3
A kind of preparation of resistance to ablation phenylate support silicon dynamic sealing putty, comprising the following steps:
S1, the modification for lubricating filler, weigh 13.75g molybdenum disulfide and 36.25g graphite powder are placed in three-necked flask,
200g toluene, 0.42gTMC105 titanate coupling agent and 1.18gKH560 is added, stirs and be passed through nitrogen, is warming up to 95 DEG C, protects
Temperature is simultaneously stirred to react 3.5h；To after reaction, be cooled to room temperature, filters and remove toluene, and be placed on acetone washing 2 times
In vacuum oven, 75 DEG C of vacuum drying 1.5h obtain modified lubrication filler；
The processing of S2, sizing material weigh 75.6g phenylate support silicon putty glue, 0.64g phenyl silicon putty glue, 3.76g phenylene silicon
Putty glue, 23.2g fumed silica and 4.2g diphenyl silanediol, mix, and Bao Tongsan times on twin-screw extruder, under
Material is put into 180 DEG C of constant temperature oven and handles 1 hour, then takes out stand-by；
The refining of S3, putty, the sizing material that takes obtained in 100g step S2 that treated sequentially add 15g sulfuric acid calcium powder,
Modified lubrication filler, 15g oxide powder and zinc, 10g alumina powder, 1.8g ethyl silicon oil, 0.72g obtained in 16g step S1
Terpene resin, 0.6g petroleum tackifier resin, mixes on twin-screw extruder, and Bao Tongsan times, blanking；
The post-processing of S4, putty: the putty refined is put into 150 DEG C of constant temperature oven and is handled 1 hour, modeling is then taken out
Shape, packaging to get.
Embodiment 4
A kind of preparation of resistance to ablation phenylate support silicon dynamic sealing putty, comprising the following steps:
S1, the modification for lubricating filler, weigh 12.5g molybdenum disulfide and 37.5g graphite powder are placed in three-necked flask, add
Enter 200g toluene, 0.5gTMC105 titanate coupling agent and 1.0gKH560, stir and be passed through nitrogen, is warming up to 90 DEG C, heat preservation is simultaneously
It is stirred to react 3h；It to after reaction, be cooled to room temperature, filters and removes toluene, and be placed on vacuum with acetone washing 2 times and do
In dry case, 70 DEG C of vacuum drying 2h obtain modified lubrication filler；
The processing of S2, sizing material weigh 80g phenylate support silicon putty glue, 15g precipitated silica and 4.8g hydroxy silicon oil,
It is mixed on twin-screw extruder, and Bao Tongsan times, blanking, is put into 180 DEG C of constant temperature oven and handles 1 hour, then taken out stand-by；
The refining of S3, putty, the sizing material that takes obtained in 100g step S2 that treated sequentially add 20g sulfuric acid calcium powder,
Modified lubrication filler obtained in 20g step S1,28g oxide powder and zinc, 10g alumina powder, 3g ethyl silicon oil are refined in double roller
It is mixed on glue machine, and Bao Tongsan times, blanking；
The post-processing of S4, putty: the putty refined is put into 150 DEG C of constant temperature oven and is handled 1 hour, modeling is then taken out
Shape, packaging to get.
Comparative example 1
A kind of preparation of resistance to ablation phenylate support silicon dynamic sealing putty, comprising the following steps:
S1, the modification for lubricating filler, weigh 12.5g molybdenum disulfide and 37.5g graphite powder are placed in three-necked flask, add
Enter 200g toluene, 0.5gTMC105 titanate coupling agent and 1.0gKH560, stir and be passed through nitrogen, is warming up to 90 DEG C, heat preservation is simultaneously
It is stirred to react 3h；It to after reaction, be cooled to room temperature, filters and removes toluene, and be placed on vacuum with acetone washing 2 times and do
In dry case, 70 DEG C of vacuum drying 2h obtain modified lubrication filler；
The processing of S2, sizing material weigh 80g phenylate support silicon putty glue, 15g precipitated silica and 4.8g hydroxy silicon oil,
It is mixed on twin-screw extruder, and Bao Tongsan times, blanking, for use；
The refining of S3, putty, the sizing material that takes obtained in 100g step S2 that treated sequentially add 20g sulfuric acid calcium powder,
Modified lubrication filler obtained in 20g step S1,28g oxide powder and zinc, 10g alumina powder, 3g ethyl silicon oil are refined in double roller
It is mixed on glue machine, and Bao Tongsan times, blanking；
The post-processing of S4, putty: the putty refined is put into 150 DEG C of constant temperature oven and is handled 1 hour, modeling is then taken out
Shape, packaging to get.
Comparative example 2
A kind of preparation of resistance to ablation phenylate support silicon dynamic sealing putty, comprising the following steps:
S1, the processing for lubricating filler, weigh 15g molybdenum disulfide and 35g graphite powder are placed in three-necked flask, and 200g first is added
Benzene stirs and is passed through nitrogen, is warming up to 90 DEG C, keeps the temperature and is stirred to react 3h；To after reaction, be cooled to room temperature, suction filtration is removed
Toluene is removed, and in a vacuum drying oven with 2 postpositions of acetone washing, 70 DEG C of vacuum drying 2h obtain that treated, and lubrication is filled out
Material；
The processing of S2, sizing material, weigh 55g phenylate support silicon putty glue, 25g phenyl silicon putty glue, 16g fumed silica and
5.0g diphenyl silanediol, mixes on twin-screw extruder, and Bao Tongsan times, blanking, and it is small to be put into 180 DEG C of constant temperature oven processing 1
When, it then takes out stand-by；
The refining of S3, putty, the sizing material that takes obtained in 100g step S2 that treated sequentially add 50g di-iron trioxide
Powder, treated obtained in 20g step S1 lubrication filler, 10g alumina powder, 3g ethyl silicon oil mix on twin-screw extruder
It is even, and Bao Tongsan times, blanking；
The post-processing of S4, putty: the putty refined is put into 150 DEG C of constant temperature oven and is handled 1 hour, modeling is then taken out
Shape, packaging to get.
Comparative example 3
A kind of preparation of resistance to ablation phenylate support silicon dynamic sealing putty, comprising the following steps:
S1, the modification for lubricating filler, weigh 13.75g molybdenum disulfide and 36.25g graphite powder are placed in three-necked flask,
200g toluene, 0.42gTMC105 titanate coupling agent and 1.18gKH560 is added, stirs and be passed through nitrogen, is warming up to 95 DEG C, protects
Temperature is simultaneously stirred to react 3.5h；To after reaction, be cooled to room temperature, filters and remove toluene, and be placed on acetone washing 2 times
In vacuum oven, 75 DEG C of vacuum drying 1.5h obtain modified lubrication filler；
The processing of S2, sizing material weigh 75.6g phenylate support silicon putty glue, 0.64g phenyl silicon putty glue, 3.76g phenylene silicon
Putty glue, 8g fumed silica and 4.2g diphenyl silanediol, mix, and Bao Tongsan times on twin-screw extruder, and blanking is put
Enter 180 DEG C of constant temperature oven to handle 1 hour, then take out stand-by；
The refining of S3, putty, the sizing material that takes obtained in 100g step S2 that treated sequentially add 15g sulfuric acid calcium powder, 4g
Modified lubrication filler, 15g oxide powder and zinc, 10g alumina powder, 1.8g ethyl silicon oil, 0.72g terpenes obtained in step S1
Resin, 0.6g petroleum tackifier resin, mixes on twin-screw extruder, and Bao Tongsan times, blanking；
The post-processing of S4, putty: the putty refined is put into 150 DEG C of constant temperature oven and is handled 1 hour, modeling is then taken out
Shape, packaging to get.
The support silicon dynamic sealing putty of the phenylate of resistance to ablation made from above-described embodiment 1-4 and comparative example 1-3 is applied into Mr. Yu's model
On the flexible joint nozzle of solid propellant rocket, embodiment 1-4 is able to satisfy the needs of practical application, wherein the sample of embodiment 3
Most preferably, the sample of embodiment 4 takes second place comprehensive performance (ablation resistance, self-lubricating property, sealing performance), the sample phase of embodiment 1
For the more secondary of embodiment 2；Comparison finds that sample obtained by comparative example 1 is easy tortoise relative to the putty of the sample of embodiment 4
It splits and falls off, sample obtained by comparative example 2 is poor relative to the self-lubricating property of the sample of embodiment 2, obtained by comparative example 3
The ablation resistance and self-lubricating property of sample are then unable to satisfy the application needs of the flexible joint nozzle of solid propellant rocket.
The phenylate of resistance to ablation obtained by embodiment 3 supports silicon dynamic sealing putty sample and applies Mr. Yu's model solid propellant rocket
Flexible joint nozzle on, for being full of connector gap, heatproof excellent effect not only acts as sealing function, also effective ground resistance is stopped
High-temperature fuel gas corrode flexible joint, while it be in not sulfided state and also have good lubricity, guarantee flexible joint nozzle according to
It is deformed by flexible joint rubber parts and completes jet pipe wobbling action.
As it will be easily appreciated by one skilled in the art that above embodiments are intended merely to better illustrate technical side of the invention
Case is not intended to limit the invention, any modifications, equivalent replacements, and improvements done within the spirit and principles of the present invention
Deng should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of phenylate of resistance to ablation supports silicon dynamic sealing putty, which is characterized in that the component including following parts by weight: base rubber 40-
60 parts, 10-20 parts of reinforced filling, 2.0-4.5 parts of antistructurizing agent, 10-35 parts of anti-burning agent and modified filler 6-14 parts of lubrication；
Wherein, the base rubber is that phenylate supports one of silicon putty glue, phenyl silicon putty glue and phenylene silicon putty glue or a variety of.
2. the phenylate of resistance to ablation according to claim 1 supports silicon dynamic sealing putty, which is characterized in that the modified lubrication filler
For modified dose of modified lubrication filler, the lubrication filler is the one or more of molybdenum disulfide, graphite powder and pyrophillite,
The modifying agent is silane coupling agent and/or titanate coupling agent；Preferably, the lubrication filler is molybdenum disulfide and graphite powder
Mixture, the mass ratio of the two is 1:1.8-3.2.
3. the phenylate of resistance to ablation according to claim 2 supports silicon dynamic sealing putty, which is characterized in that the modifying agent is silane
The mixture of coupling agent and titanate coupling agent, preferably the KH560 silane coupling agent of mass ratio 4:1.2-2.7 and TMC105 titanium
The mixture of acid esters coupling agent.
4. the phenylate of resistance to ablation according to claim 1-3 supports silicon dynamic sealing putty, which is characterized in that the base rubber
Phenylate including accounting for the base rubber total weight 92.5-97.8% supports the benzene of silicon putty glue, Zhan Suoshu base rubber total weight 0.5-1.2%
Base silicon putty glue and the phenylene silicon putty glue for accounting for the base rubber total weight 1.5-6.7%.
5. the phenylate of resistance to ablation according to claim 1-4 supports silicon dynamic sealing putty, which is characterized in that
The reinforced filling is the one or more of fumed silica, precipitated silica and silicon powder；
And/or the antistructurizing agent is hydroxy silicon oil, octamethylcyclotetrasiloxane, hexamethyldisilazane, methylchlorosilane
With one of diphenyl silanediol or a variety of；
And/or the anti-burning agent is zirconia powder, alumina powder, silica flour, sulfuric acid calcium powder, ferroso-ferric oxide powder, three oxidations two
One of iron powder and oxide powder and zinc are a variety of.
6. the phenylate of resistance to ablation according to claim 5 supports silicon dynamic sealing putty, which is characterized in that including following parts by weight
Component: 47.6-58.7 parts of base rubber, 12.4-17.3 parts of reinforced filling, 2.5-2.8 parts of antistructurizing agent, anti-burning agent 18-29
Part and modified filler 9.2-11.8 parts of lubrication.
7. the phenylate of resistance to ablation according to claim 1-6 supports silicon dynamic sealing putty, which is characterized in that further include increasing
Stick, the tackifier are one or more, the addition of the tackifier of ethyl silicon oil, terpene resin and petroleum tackifier resin
Amount is 0.02-0.04 times of base rubber, reinforced filling and antistructurizing agent quality sum.
8. the phenylate of resistance to ablation according to claim 7 supports silicon dynamic sealing putty, which is characterized in that the tackifier are quality
Than the mixture for the ethyl silicon oil of 2-4.2:1.2:1.0, terpene resin and petroleum tackifier resin.
9. the preparation method of any one of -8 phenylate of the resistance to ablation support silicon dynamic sealing putty according to claim 1, which is characterized in that
Include the following steps:
S1, lubrication filler and modifying agent are placed in container, and the toluene of described lubrication 4-6 times of weight of filler is added, in nitrogen
Be warming up to 80-120 DEG C under atmosphere protection, filtered after being stirred to react 2-4h, and with after acetone washing 2-3 times at 60-80 DEG C it is true
The dry 1-2h of sky obtains modified lubrication filler；
S2, base rubber, reinforced filling and antistructurizing agent are weighed in proportion, after mixing, 2-4 simultaneously blanking of Bao Tong obtains
Sizing material is spare；
S3, anti-burning agent and modified lubrication filler are weighed respectively in proportion, be added in sizing material obtained in step S2, mixing is equal
After even, Bao Tong 2-4 times and blanking, be subsequently placed at 140-190 DEG C handle 1-2h to get.
10. the preparation method of the phenylate of resistance to ablation support silicon dynamic sealing putty according to claim 9, which is characterized in that
It in step s 2, further include that sizing material is placed in high-temperature process 55-75min at 170-190 DEG C after blanking；
It and/or in step s3, further include before being uniformly mixed, weighing tackifier in proportion and being added to made in step S2
In the sizing material obtained.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910193787.0A CN109880426A (en) | 2019-03-14 | 2019-03-14 | A kind of resistance to ablation phenylate support silicon dynamic sealing putty and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910193787.0A CN109880426A (en) | 2019-03-14 | 2019-03-14 | A kind of resistance to ablation phenylate support silicon dynamic sealing putty and preparation method thereof |
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| CN201910193787.0A Pending CN109880426A (en) | 2019-03-14 | 2019-03-14 | A kind of resistance to ablation phenylate support silicon dynamic sealing putty and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110437801A (en) * | 2019-08-16 | 2019-11-12 | 西安长峰机电研究所 | One kind not solidifying putty material |
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| JPH0625598A (en) * | 1992-06-10 | 1994-02-01 | Sekisui Chem Co Ltd | Sealing of joint part of panel |
| CN105694468A (en) * | 2016-03-30 | 2016-06-22 | 湖北三江航天江北机械工程有限公司 | Phenylene silicone putty and preparation method thereof |
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| JPH0625598A (en) * | 1992-06-10 | 1994-02-01 | Sekisui Chem Co Ltd | Sealing of joint part of panel |
| CN105694468A (en) * | 2016-03-30 | 2016-06-22 | 湖北三江航天江北机械工程有限公司 | Phenylene silicone putty and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110437801A (en) * | 2019-08-16 | 2019-11-12 | 西安长峰机电研究所 | One kind not solidifying putty material |
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Application publication date: 20190614 |